1)The placemats are water-proof, strong, durable and reusable,opaque, tracslucent and transparent features, elegant and fashionable.2)Indoor or outdoor use without any fading, staining or mildew.3)Jus wipe the mat and clean with a sponge or wet dish towel.4)Acid-resistant, alkali-resistant, non-poisonous and no harm to human body.